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1380071088 = 243311290419
BaseRepresentation
bin101001001000010…
…0011011010110000
310120011211212122000
41102100203122300
510311244233323
6344535414000
746125260604
oct12220433260
93504755560
101380071088
11649017920
12326224300
1318cbc1816
14d1405504
1581259e43
hex524236b0

1380071088 has 80 divisors (see below), whose sum is σ = 4321449600. Its totient is φ = 418201920.

The previous prime is 1380071087. The next prime is 1380071107. The reversal of 1380071088 is 8801700831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1380071083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140458 + ... + 149961.

It is an arithmetic number, because the mean of its divisors is an integer number (54018120).

Almost surely, 21380071088 is an apocalyptic number.

1380071088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1380071088 is an abundant number, since it is smaller than the sum of its proper divisors (2941378512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1380071088 is a wasteful number, since it uses less digits than its factorization.

1380071088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290447 (or 290435 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 1380071088 is about 37149.3080420080. The cubic root of 1380071088 is about 1113.3553983061.

The spelling of 1380071088 in words is "one billion, three hundred eighty million, seventy-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 88 99 108 132 144 176 198 216 264 297 396 432 528 594 792 1188 1584 2376 4752 290419 580838 871257 1161676 1742514 2323352 2613771 3194609 3485028 4646704 5227542 6389218 6970056 7841313 9583827 10455084 12778436 13940112 15682626 19167654 20910168 25556872 28751481 31365252 38335308 41820336 51113744 57502962 62730504 76670616 86254443 115005924 125461008 153341232 172508886 230011848 345017772 460023696 690035544 1380071088